Bypass Blower Time Delay Relay?

timtimory · 10-07-2012, 10:47 PM

I am installing a heat pump split system and are not getting 24v at the BTDR. I beleave i can bypass BTDR with out damage. I just want another opinion.

carmon · 10-07-2012, 11:23 PM

Quote:

Originally Posted by timtimory

I am installing a heat pump split system and are not getting 24v at the BTDR. I beleave i can bypass BTDR with out damage. I just want another opinion.

schematic please..... or go ahead and duck....lol

timtimory · 10-07-2012, 11:49 PM

I am installing a heat pump split system and are not getting 24v at the BTDR. I beleave i can bypass BTDR with out damage. I just want another opinion. The schematics show from the transformer to the Blower Time Delay Relay and dose not show normaly open or closed and from the relay out of the airhandler case.

timtimory · 10-08-2012, 09:52 AM

Thermostat, outside, and airhandler units red wire are not getting 24 volt. these are tapped at air handler. red wire going into blower time delay relay board not getting 24v. red wire comes out to the transformer reads 24v. this wiring is how the schematic shows. I got to get this system running. Im gonna bypass board temporaly.

**beenthere** · 10-08-2012, 06:02 PM

Might have a blown fuse. If so, you got a short somewhere.

timtimory · 10-09-2012, 08:33 AM

What is XFMR-R and XFMR-C on the wire diagram. XFMR-R is the pin that has no 24V coming through.

**beenthere** · 10-09-2012, 03:12 PM

R is the 24 volt hot, C is the 24 volt common.

timtimory · 10-12-2012, 11:13 PM

The 3 amp fuse at the relay board was found to be blown after i bypassed the relay. bypass worked the blower came on. I jumped 24v red to fan green. I did the same with the heat coil. the both work. I changed the fuse and put the themastat back up. Its not turning anything on. I then took it off and lost power again. I guess the fuse is blown again. It looks like a faulty thermastat. I know the R is for 24v and C is for common. What is XFMR stand for?

**beenthere** · 10-13-2012, 09:06 AM

Transformer.

timtimory · 10-15-2012, 03:36 PM

I tryed a different thermastat and the fuse still blew. I checked over the wires and all conections are tight. I tested the primary and secondary power on the transformer. Fuse only blows when thermastats are hooked up. It dosen't when i jump 24v power. it worls fine when power is jumped. is there a known proble with Goodman Heat pump units and air handlers?

Marty S. · 10-15-2012, 05:01 PM

Sounds like the thermostat isn't wired right.

**beenthere** · 10-15-2012, 05:25 PM

Thermostats? You have more then one thermostat connected to it?

List what wires are connected where. As above, sounds like its a wiring problem.

Goodman doesn't have a problem with their units shorting out.

timtimory · 10-15-2012, 09:55 PM

I got it working. I miss placed one wire after all. The common was on RC instead of C and jumper from R to Rc.

timtimory · 10-15-2012, 09:57 PM

Quote:

Originally Posted by timtimory

I got it working. I miss placed one wire after all. The common was on RC instead of C and jumper from R to Rc.

Three fuses latter I learned a lesson on first Heatpump install by my self.

10-07-2012, 10:47 PM	#1
timtimory Newbie Join Date: May 2012 Posts: 14	Bypass Blower Time Delay Relay? I am installing a heat pump split system and are not getting 24v at the BTDR. I beleave i can bypass BTDR with out damage. I just want another opinion.

10-07-2012, 11:49 PM	#3
timtimory Newbie Join Date: May 2012 Posts: 14	Bypass Blower Time Delay Relay? I am installing a heat pump split system and are not getting 24v at the BTDR. I beleave i can bypass BTDR with out damage. I just want another opinion. The schematics show from the transformer to the Blower Time Delay Relay and dose not show normaly open or closed and from the relay out of the airhandler case.

10-08-2012, 09:52 AM	#4
timtimory Newbie Join Date: May 2012 Posts: 14	Bypass Blower Time Delay Relay? Thermostat, outside, and airhandler units red wire are not getting 24 volt. these are tapped at air handler. red wire going into blower time delay relay board not getting 24v. red wire comes out to the transformer reads 24v. this wiring is how the schematic shows. I got to get this system running. Im gonna bypass board temporaly.

10-08-2012, 06:02 PM	#5
beenthere An old Tradesmen Join Date: Oct 2008 Location: PA Posts: 19,061	Bypass Blower Time Delay Relay? Might have a blown fuse. If so, you got a short somewhere.

10-09-2012, 08:33 AM	#6
timtimory Newbie Join Date: May 2012 Posts: 14	Bypass Blower Time Delay Relay? What is XFMR-R and XFMR-C on the wire diagram. XFMR-R is the pin that has no 24V coming through.

Bypass Blower Time Delay Relay?