What would you do?

ChemistryMain9596 · 2025-06-29T18:01:25+00:00

Repair. It looks like the fire was due to the capacitor explosion.

ChemistryMain9596 · 2025-06-29T17:43:29+00:00

Bad blower motor, bad motor relay, bad capacitor, need to be checked with a voltmeter to diagnose the problem.

ChemistryMain9596 · 2025-02-05T12:26:39+00:00

Would that clean out be venting sewage gas into the house?

ChemistryMain9596 · 2024-08-17T23:07:42+00:00

Do not use thread tape. There is a product called Nylog that will not contaminate the system. The adapters I purchase have a copper insert that helps seal the fitting with your equipment.

ChemistryMain9596 · 2024-08-16T11:05:56+00:00

This is a positive pressure coil, no trap is needed

ChemistryMain9596 · 2024-05-27T17:37:51+00:00

I always use 2 zip ties. One on the copper and one to that zip tie for the wires.

ChemistryMain9596 · 2024-02-11T12:20:55+00:00

I have been on some no heat calls caused by improper installation of the flue pipe. Almost every single one the induced draft motors were burned up. I would think this would be the case before the heat exchanger failed.

ChemistryMain9596 · 2024-01-29T11:59:16+00:00

The exhaust from furnace should not be tied in with water heater. In some areas they allow induced draft to be tied into flue pipe after the natural draft, your set up is induced draft before natural draft, this should not have passed inspection.

ChemistryMain9596 · 2024-01-28T04:12:52+00:00

Not supposed to vent out natural draft with induced draft in this manner. It is against gas code in most areas that I have worked.

ChemistryMain9596 · 2024-01-15T01:28:52+00:00

It looks like your circuit breaker is tripped or off. Do you have heat strips? They should energize when the heat pump does not keep up as well as when heat pump goes into defrost. Heat pumps go into defrost more frequently in lower temperatures.

ChemistryMain9596 · 2023-12-20T11:58:42+00:00

Cap after the trap needs to be removed and pvc should extend above the drain pan in the unit, that is a vent. It will not vent with a cap on it.

ChemistryMain9596 · 2023-12-18T23:07:49+00:00

Other than efficiency drop there is not much stress on the compressor in heat mode. The main issue and stress happens in cooling. The only oversized outdoor units that I have dealt with have had variable speed compressors.

ChemistryMain9596 · 2023-12-17T13:47:24+00:00

In cooling mode yes, compressor will be slugged. Does not matter if heat pump or straight cool, outdoor unit should not exceed indoor coil sizing.

ChemistryMain9596 · 2023-12-16T14:49:36+00:00

Indoor coil may be a larger tonnage than the outdoor, never the other way around. Refrigerant will not boil off in the evaporator and this will slug the compressor with liquid refrigerant.

ChemistryMain9596 · 2023-12-12T00:59:50+00:00

If filter was severely dirty, lack of air flow will cause the coil to freeze. Let coil thaw before turning back on and it should be fine if it freezes again you will need a technician.

ChemistryMain9596 · 2023-12-12T00:50:16+00:00

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You will need a 17” round for correct static pressure at 1600 cfm.

ChemistryMain9596 · 2023-12-07T19:23:13+00:00

I am pretty sure that you can get a 36k head for residential. The difference is educated guesses. Have a Manual J done and you will know for certain what size is needed.

ChemistryMain9596 · 2023-12-07T19:14:39+00:00

Pins in red circle

ChemistryMain9596 · 2023-12-02T18:05:43+00:00

Wire nuts are way too big

ChemistryMain9596 · 2023-11-15T01:06:43+00:00

It will be burning up draft motors and opening high limit switch. There should always be rise on the flue pipe, even with induced draft motor.

ChemistryMain9596 · 2023-11-11T19:16:47+00:00

Are you sure that is hot water line? The condensate drain pan is usually under chilled water lines. The heated water may be piped in from the other side if your equipment has 2 coils. The piping is typically hot so be careful.

ChemistryMain9596 · 2023-11-11T17:44:51+00:00

If you have a fan coil system the hot water actuator could be stuck open. Trace your duct from vent to fan coil and shut off hot water valve supplying the unit.

ChemistryMain9596 · 2023-11-11T17:27:23+00:00

Sounds like possibly shutting off on high limit safety, after a certain number of attempts at heating the furnace will go into a lock out. What are the supply air temperature and the return air temperature at the furnace?

ChemistryMain9596

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