I have the fixed speed ARUF374316 air handler for my Goodman GSH14036 heat pump. The Installation and Operating Instructions have a seperate sheet of paper titled "Supplimental Insert, Electronic Blower Time Delay Relay, B13707-35". There is a 7 second delay for the air handler fan to start after the condenser starts. There is a 65 second delay for the air handler fan to continue to run after the condenser shuts off. This TDR is currently operating properly on my system. Note that heat pumps require a certain amount of run time to reach optimal output temps. Even with a functioning TDR, I still get "cool" air for the first few minutes. The palm of your hand is about 91F, so any air at or near that temp will feel cool. Take care.

tigerdunes: The installer is also the Amana service person. We have a 10 yr parts and labor contract w/Amana. I could call Amana and see if they will send over another company at no charge to us, but we thought if it was an install problem, then Amana wouldn't cover the service. So... 1) Is there any way we can tell if there is an 8kw heat strip installed? And, if it is, is there anyway for us to tell whether it is hooked up properly AND working properly? 2) Again, the installer/service person "tells" us it is working (i.e., he put the compressor into defrost, came inside and looked at something and said "yup, the heat strip is working") He has even called a couple other HVAC people to ask them questions while he was here. He feels since we are getting 36,000 BTU's of cool and only 30,000 BTU's of heat (with the 8kw strip) that it will always be colder. But what I've read on other posts is that the heat strip has a 30/70 and I wondered if perhaps in defrost mode that it is only operating at 30% capacity??? (Like I really know what I'm talking about, so forgive me if I'm WAY off base). We did have him adjust the CFM down to 1100. It was running at I think 1400 and the noise through the duct/vent was too much (the vents were cleared out, though). Also, in the summer, it would only run for about 4 minutes, not enough time to help w/the humidity in the house. When the temps are above 40, the "heat" runs for 9-15 minutes normally. If you or anyone else has any further info for me, let me know. Otherwise, I will try to get someone else to look at it. I'll let you know.

Interesting,point, but I've seen the Contractor's humidifier installations in the subdivision, so I doubt it. They hook one the humidifier pipe into the main duct above the furnace. The two pipes I am referring to are actually hooked up to the bottom of furnace unit it self, similar to the main cold air return duct. Sorry I don't have photos at this point.

It is very possible that your filters were dirty and/or restrictive, thus reducing air flow. When this happens, temperature inside the furnace may rise to an unsafe level. Then, the burner turns off and the fan runs to cool everything down. This is a safety feature. What type of filters are you using and where are they located? Some pleated filters (Filtrete, 3M)can be restrictive. V