Nordyne Model No: MSC36E- C3 Serial No: MK0688-02860 This is a Nordyne, self-contained A/C system, for a mobile home 14' x 70', manufactured in 1988 (the A/c unit I mean, not the home), but I have no idea of the condenser fan motor's age. Not sure when it was oiled last either - the fan blade didn't...

Coleman Furnace DGAA077BDTA I want to remove my gas furnace and install an electric furnace. Does the roof jack (correct name for the vent on the roof that connects to the furnace below?) basically pull off of a stub that sticks out of the top of the gas furnace, after I undo whatever is anchoring t...

Went back today and watched exactly what was happening (which I should have done yesterday). Package unit would run for 5 or 10 minutes, then condenser fan would come to a halt. Its motor would hum loudly and compressor stopped running. First I changed all three capacitors, but no help, same thing h...

Not certain of the model number, but certain about the serial number: Model: MSC-3GE-C2 (am fairly certain of all characters but the "E" - could be an "F"). Serial: MK0387-01039 (certain of this number). Miller Package Unit A/C (that's what's on top of the cabinet: "Miller&q...

Coleman Presidential III Model: Looks like 7680B or 76808 Series 856 Serial Number: 047863650 (the "8" could be a "B") Fan runs about 10 minutes after thermostat shuts down burner, then fan shuts off. All else seems to be normal. The new thermostat is for heating and cooling (Hun...

Okay - and would a blocked air filter and/or dirty burner cause this problem also, or at least contribute?

Thx for getting back today.

Coleman Presidential III Model:7975-856 Serial: 028866514 Burner flame is more yellow than blue. I assume it needs cleaning and/or adjustment. I've been reading online about how to adjust, but don't know where to find adjustment. It's my understanding that there is a gas pressure adjustment and an a...

Ok then, thx so much for your help Robert.

Justplumducky

My apologies for the oversight and lack of info. I also had done the amps draw and it wasn't pulling hardly anything at all (literally), but I didn't get the clamp meter on it until after it had started, and if I understand LRA (I Googled for it), that's only momentary and then it goes off on overlo...

No I haven't Robert. I was assuming since the compressor doesn't run at all (it won't start up), that a dirty condenser wouldn't come into play. If that's what you want me do, that's what I'll do. Let me guess: Something on the order of it possibly being pressure-locked due to dirty condenser and re...

Presidential Model Number: 6281B801 Serial Number: 2724150 Compressor not running and hot after a couple minutes or so. Condenser fan running normally. New contactor relay. All wires and connections good (shiny new copper wire in wire nuts - redone recently - all wires have continuity). One 35MFD ca...

Robert wrote: Clear as mud, LOL ?

I do not think your t-stat is closing when needed to turn off a/c circuit.

Well, maybe if I read it a second time

Right you are, of course... I put a simple, mechanical, heat only thermostat on - it's doing its thing now, properly.

Thank you sooo much !!

I went out and got a new t-stat (same as the one they were using: Honeywell digital) and it didn't help. Then I stumbled onto a Coleman distributor here in town who told me, for exact reasons unknown, the Honeywell digital t-stat I was using, with ON/OFF Fan switch & Heat/Cool position switch, b...

My apologies for the delay. Yes, it reads a little over 24vac on both the thermostat wires (red & white) and also the yellow and gray wires going to the contactor outside, when the t-stat is off, and regardless of Heat or Cool position at the rocker switch on right side of upper control panel. T...

I installed the new transformer for the lower box and measured across the load side and the thermostat wires (red & white) and got a little more than 24vac. Also checked the upper transformer in the AC control box and got 24vac. I neglected to measure at the thermostat, but I did put a new therm...