Question about Heating & Cooling
Is this a heat package inside a Goodman air handler? If so, it is probably at least a 10kw (two element) unit and it sounds like the first stage is not coming on. Of course it could also be a 15 or 20 kw heat package with multiple heat stages, I have no way of knowing.
Sometimes the second and subsequent heating elements operate off of the 'sequencer' of the previous stage. Not always though. If its a regular furnace it should have a terminal strip with R W G Y and C on it. With the thermostat calling for heat, check for voltage (hopefully you have at least a cheap DVOM) between W and C. If 24 vac is present, find the first stage sequencer by looking at the schematic on the air handler door. Follow the wire on W1 in the diagram to the sequencer. After locating the sequencer, check for voltage across the coil....which should be the same as W and C. If there is 24vac there and it has been there for 45 seconds, the sequencer switch should be closed which then energizes the heating element. Without an 'amprobe' (clamp on ammeter) it is difficult to determine if current is flowing through the heating element.
If you can verify that the first stage element now has 240 volts across it, but there is still no heat about all you can do is turn off the power ---------- (IMPORTANT!!!!!!)-------- and remove the high voltage wire from one end of the element and use an ohmmeter (if you are lucky enough to have one) to verify that the heating element is in fact good or not. Resistance shown on the ohmmeter shows it to be good, no resistance shows it to be open and possibly the culprit.
Of course in series with the element is always a 'high temperature cut out' that could be causing the element to not heat. The same technique is used to check and verify each sequencer and element in the furnace. Its a whole lot easier if you have an amprobe.
Remember you are in a high voltage environment which is very dangerous to the untrained individual. Do not attempt this if you are nervous around electricity !!!!!
There is a whole lot more than can be written in a concise manner but this may get you in the ballpark....
You should befriend an HVAC guy.....
Posted on Nov 23, 2014
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Posted on Jan 02, 2017
when its flashing its in a 5 min delay mode if you wait 5 min and still flashing you may need a new stat. but give it a full 5 min.
Posted on Sep 20, 2009
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"PLACE A JUMPER (PIECE OF WIRE) BETWEEN Y AND W IF YOU ARE USING A HEAT PUMP WITHOUT AUXILIARY/BACKUP HEAT." if this dosnt work check the fuse in the air handler you may have blown it if you did not turn the unit off before installing.
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