Fan comes on but no ignition (sometimes

SOURCE: RV pilot light goes out

replace the thermocouple/flame sensor and make sure the flue/exhaust is clear and not getting wind gusts in it blowing out the flame.

SOURCE: My Dometic 620315 Penguin roof a/c does not produce cold air.

If the compressor is running with no cold air the unit is more than likely no good. It can not be recharged. you need a new unit. If the compressor is not running you need to check the capacitors.

SOURCE: carrier air-v AC is not blowing cold air

There could be a freon leak, or just low freon levels. If this is the case, you have to call a certified a/c technician to recharge your system.

Mike Butler

• 6674 Answers
• Posted on Jul 08, 2009

SOURCE: I have a DuoTherm BriskAIr 13.5K BTU. The Dometic

If you look at control box at roof unit, they usually use a separate set of wires for furnace. See what colors they are attached to at harness to thermostat. Some just follow other harness, and come out at thermostat. (bypass control box) Once you've determined which 2 they are, join them together & see if furnace starts, as it should. If it does, thermostat is faulty. If not, pull outside cover off & check voltages at furnace. I'm guessing by furnace model that your unit is approx 30 ft , but if it's a park model, you may have 24 volt system on furnace or 12 volt. Another way of confirming is to go to back of furnace where air intake grille is inside your unit, and locate 2 blue wires going to furnace & remove whatever wires are attached to them & connect them together. Furnace should start up.

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SOURCE: LAST NIGHT WORKING FINE ~ THIS MORNING NOT BLOWING COLD AIR

check one of the following stop the cooling
a- condenser need cleaning
b- condenser fan not operating
1 -check correct voltage comes to the fan motor if ok
2- check capacitor if ok
3-check motor winding
c-low suction pressure
need check for leak before charging.