MR COOL Air Conditoners - Revision history

JimD at 14:49, 20 July 2026

2026-07-20T14:49:23Z

← Older revision		Revision as of 10:49, 20 July 2026
Line 11:		Line 11:

	== Usage/Safety ==		== Usage/Safety ==
	*Each unit (woodshop and metalshop) ~~has~~ (TV type IR) handheld remote control kept in a known location (see TBD photo)		*Each unit (woodshop and metalshop) is operated by its (TV type IR) handheld remote control kept in a known location (see TBD photo)
	*Recommended temp settings are seasonal (TBD schedule)		*Recommended temp settings are seasonal (TBD schedule)

JimD at 14:48, 20 July 2026

2026-07-20T14:48:41Z

← Older revision		Revision as of 10:48, 20 July 2026
Line 11:		Line 11:

	== Usage/Safety ==		== Usage/Safety ==
	*Each unit (woodshop and metalshop) has a remote control kept in a known location (see TBD photo)		*Each unit (woodshop and metalshop) has (TV type IR) handheld remote control kept in a known location (see TBD photo)
	*Recommended temp settings are seasonal (TBD schedule)		*Recommended temp settings are seasonal (TBD schedule)

JimD at 14:47, 20 July 2026

2026-07-20T14:47:34Z

← Older revision		Revision as of 10:47, 20 July 2026
Line 11:		Line 11:

	== Usage/Safety ==		== Usage/Safety ==
			*Each unit (woodshop and metalshop) has a remote control kept in a known location (see TBD photo)
			*Recommended temp settings are seasonal (TBD schedule)

	== Specifications ==		== Specifications ==

JimD at 14:41, 20 July 2026

2026-07-20T14:41:25Z

← Older revision		Revision as of 10:41, 20 July 2026
Line 49:		Line 49:

	*Step 4: Clean Dirty Air Filters		*Step 4: Clean Dirty Air Filters
	***If the mesh air filters are matted with dust or lint, airflow across the evaporator coil drops significantly. This causes the coil temperature to plunge, creating excessive ice formation. When the unit cycles off or defrosts, that mass of ice melts faster than the drain pan can catch it, causing water to spill over.		**If the mesh air filters are matted with dust or lint, airflow across the evaporator coil drops significantly. This causes the coil temperature to plunge, creating excessive ice formation. When the unit cycles off or defrosts, that mass of ice melts faster than the drain pan can catch it, causing water to spill over.
	***How to fix:		**How to fix:
	***Flip open the front panel on the indoor head.		***Flip open the front panel on the indoor head.
	***Slide out the washable air filters.		***Slide out the washable air filters.

JimD at 14:40, 20 July 2026

2026-07-20T14:40:49Z

JimD at 14:39, 20 July 2026

2026-07-20T14:39:34Z

← Older revision		Revision as of 10:39, 20 July 2026
Line 4:		Line 4:
	\|model=sku # O-09-HP-WMAH-230C-0)		\|model=sku # O-09-HP-WMAH-230C-0)
	\|arrived= made in China date manufactured 11/2021		\|arrived= made in China date manufactured 11/2021
	\|doesitwork=yes		\|doesitwork=yes (but the condensate drain typically plugs and need to be periodically cleaned)
	\|contact=broken@lvl1.org		\|contact=broken@lvl1.org
	\|where=woodshop (and metalshop)		\|where=woodshop (and metalshop)

JimD at 14:38, 20 July 2026

2026-07-20T14:38:35Z

@@ Line 28: / Line 28: @@
 Condensation dripping from a MRCOOL indoor wall unit (O-09-HP-WMAH-230C-O) usually stems from a few specific, common causes. You can diagnose and resolve the issue by working through the primary culprits below, ordered from most frequent to least frequent:
-Step 1: Clear a Clogged Condensate Drain Line (Most Common)
+*Step 1: Clear a Clogged Condensate Drain Line (Most Common)
-Over time, dust, algae, or biofilm can clog the flexible drain hose exiting the back of the indoor unit. When water can’t drain outside, it overflows the internal drain pan and drips down the wall.
+**Over time, dust, algae, or biofilm can clog the flexible drain hose exiting the back of the indoor unit. When water can’t drain outside, it overflows the internal drain pan and drips down the wall.
-How to fix:
+*Step 2: Check Unit Leveling and Wall Bracket
-Go outside and locate the exit end of the thin drain hose (where condensate normally drips out).
+*Step 3: Inspect the Drain Line Routing for Kinks or Dips
-Take a wet/dry shop vacuum, attach it tightly around the hose opening (wrap a wet rag around the nozzle to form a seal), and run the vacuum for 60–90 seconds. This will suck out built-up slime or dirt.
+*Step 4: Clean Dirty Air Filters
-Turn off the AC power, lift the front cover on the indoor unit, remove the air filters, and carefully pour 1–2 cups of warm water directly into the narrow drain channel below the evaporator coil. Check outside to confirm it drains immediately and freely.
+*Step 5: Check for Ice on the Evaporator Coil

JimD at 14:35, 20 July 2026

2026-07-20T14:35:02Z

← Older revision		Revision as of 10:35, 20 July 2026
Line 20:		Line 20:
	== Photos ==		== Photos ==

	[[File:~~BuffaloForgeDrillPress1of2~~.~~JPG~~\|250px]] ~~This right-side view shows the quill feed handle and the depth stop feature~~		[[File:MR_COOL_AC_Label_20260720.jpeg\|250px]] Manufacturer's unit label

	~~[[File~~:~~BuffaloForgeDrillPress2of2.JPG\|250px]] This left~~-~~side view shows the quill lock~~, the ~~headstock and table adjusting screws and~~ the ~~quill retract spring knob (no need~~ to ~~adjust)~~		== Being Excellent ==

			Google Gemini recommends the following:

			Condensation dripping from a MRCOOL indoor wall unit (O-09-HP-WMAH-230C-O) usually stems from a few specific, common causes. You can diagnose and resolve the issue by working through the primary culprits below, ordered from most frequent to least frequent:

	~~== Being Excellent ==~~		Step 1: Clear a Clogged Condensate Drain Line (Most Common)
			Over time, dust, algae, or biofilm can clog the flexible drain hose exiting the back of the indoor unit. When water can’t drain outside, it overflows the internal drain pan and drips down the wall.

			How to fix:

			Go outside and locate the exit end of the thin drain hose (where condensate normally drips out).

			Take a wet/dry shop vacuum, attach it tightly around the hose opening (wrap a wet rag around the nozzle to form a seal), and run the vacuum for 60–90 seconds. This will suck out built-up slime or dirt.

	~~# tbd placeholder~~		Turn off the AC power, lift the front cover on the indoor unit, remove the air filters, and carefully pour 1–2 cups of warm water directly into the narrow drain channel below the evaporator coil. Check outside to confirm it drains immediately and freely.

JimD at 14:32, 20 July 2026

2026-07-20T14:32:50Z

← Older revision		Revision as of 10:32, 20 July 2026
Line 3:		Line 3:
	\|serial=n/a		\|serial=n/a
	\|model=sku # O-09-HP-WMAH-230C-0)		\|model=sku # O-09-HP-WMAH-230C-0)
	\|arrived= mm/~~dd/yyyy ?~~		\|arrived= made in China date manufactured 11/2021
	\|doesitwork=yes		\|doesitwork=yes
	\|contact=broken@lvl1.org		\|contact=broken@lvl1.org

JimD at 14:31, 20 July 2026

2026-07-20T14:31:17Z

← Older revision		Revision as of 10:31, 20 July 2026
Line 7:		Line 7:
	\|contact=broken@lvl1.org		\|contact=broken@lvl1.org
	\|where=woodshop (and metalshop)		\|where=woodshop (and metalshop)
	\|picture=~~n/a~~		\|picture=MR_COOL_AC_Label_20260720.jpeg
	}}		}}

← Older revision		Revision as of 10:40, 20 July 2026
Line 31:		Line 31:
	**Over time, dust, algae, or biofilm can clog the flexible drain hose exiting the back of the indoor unit. When water can’t drain outside, it overflows the internal drain pan and drips down the wall.		**Over time, dust, algae, or biofilm can clog the flexible drain hose exiting the back of the indoor unit. When water can’t drain outside, it overflows the internal drain pan and drips down the wall.
	**How to fix:		**How to fix:
	**Go outside and locate the exit end of the thin drain hose (where condensate normally drips out).		***Go outside and locate the exit end of the thin drain hose (where condensate normally drips out).
	**Take a wet/dry shop vacuum, attach it tightly around the hose opening (wrap a wet rag around the nozzle to form a seal), and run the vacuum for 60–90 seconds. This will suck out built-up slime or dirt.		***Take a wet/dry shop vacuum, attach it tightly around the hose opening (wrap a wet rag around the nozzle to form a seal), and run the vacuum for 60–90 seconds. This will suck out built-up slime or dirt.
	**Turn off the AC power, lift the front cover on the indoor unit, remove the air filters, and carefully pour 1–2 cups of warm water directly into the narrow drain channel below the evaporator coil. Check outside to confirm it drains immediately and freely.		***Turn off the AC power, lift the front cover on the indoor unit, remove the air filters, and carefully pour 1–2 cups of warm water directly into the narrow drain channel below the evaporator coil. Check outside to confirm it drains immediately and freely.

	*Step 2: Check Unit Leveling and Wall Bracket		*Step 2: Check Unit Leveling and Wall Bracket
	**Ductless indoor units rely on gravity for drainage. If the indoor wall-mounting plate is uneven, water will pool at the wrong end of the internal drain pan and spill over the front trim.		**Ductless indoor units rely on gravity for drainage. If the indoor wall-mounting plate is uneven, water will pool at the wrong end of the internal drain pan and spill over the front trim.
	**How to fix:		**How to fix:
	**Place a bubble level along the bottom edge of the indoor unit.		***Place a bubble level along the bottom edge of the indoor unit.
	**The unit must be dead level or slightly tilted toward the side where the drain line exits. If it tilts away from the drain hose side, lift/adjust the unit on its mounting hooks to level it.		***The unit must be dead level or slightly tilted toward the side where the drain line exits. If it tilts away from the drain hose side, lift/adjust the unit on its mounting hooks to level it.

	*Step 3: Inspect the Drain Line Routing for Kinks or Dips		*Step 3: Inspect the Drain Line Routing for Kinks or Dips
	**The drain line running through the wall sleeve or line set cover must maintain a continuous downward slope (at least 1/4 inch of fall per foot).		**The drain line running through the wall sleeve or line set cover must maintain a continuous downward slope (at least 1/4 inch of fall per foot).
	**How to fix:		**How to fix:
	**Trace the line from behind the indoor unit out through the wall.		***Trace the line from behind the indoor unit out through the wall.
	**Ensure there are no saggy dips, low spots, or upward bends. Any high/low spots create a trap that holds water and stops gravity flow.		***Ensure there are no saggy dips, low spots, or upward bends. Any high/low spots create a trap that holds water and stops gravity flow.
	**Note: If your installation route must run horizontally for a long distance or climb upwards, you must install an external mini-split condensate pump.		***Note: If your installation route must run horizontally for a long distance or climb upwards, you must install an external mini-split condensate pump.

	*Step 4: Clean Dirty Air Filters		*Step 4: Clean Dirty Air Filters
	**If the mesh air filters are matted with dust or lint, airflow across the evaporator coil drops significantly. This causes the coil temperature to plunge, creating excessive ice formation. When the unit cycles off or defrosts, that mass of ice melts faster than the drain pan can catch it, causing water to spill over.		***If the mesh air filters are matted with dust or lint, airflow across the evaporator coil drops significantly. This causes the coil temperature to plunge, creating excessive ice formation. When the unit cycles off or defrosts, that mass of ice melts faster than the drain pan can catch it, causing water to spill over.
	**How to fix:		***How to fix:
	**Flip open the front panel on the indoor head.		***Flip open the front panel on the indoor head.
	**Slide out the washable air filters.		***Slide out the washable air filters.
	**Wash them thoroughly with warm water and mild soap, let them dry completely, and reinstall them.		***Wash them thoroughly with warm water and mild soap, let them dry completely, and reinstall them.

	*Step 5: Check for Ice on the Evaporator Coil		*Step 5: Check for Ice on the Evaporator Coil