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Topic: Rear RTU not working. (Read 808 times) previous topic - next topic

Rear RTU not working.

  Just lost all functions in bedroom RTU - Coleman AC with heat strip.  No fan, no heat, no love.
Physically checked breaker - not tripped
Check for voltage to the unit, has zero.

  I'm planning to check for voltage at the breaker later (along with tight connection at the breaker) and if need be, check continuity through the wires.  Tie the two ends together at the ceiling (yes, power off) and then check for breaks at the power box.  After that I'd be stumped.
  Any suggestions for what to check?  I am NOT an AC guy, but figure no power = no work.
In restless dreams I walked alone.
Narrow streets of cobblestone.


'93 U225
Build 4337
'14 CRV Toad

Re: Rear RTU not working.

Reply #1 –
Flip every breaker off then on
"Riding and rejoicing"
Bob
1997 U320 40' Mid entry, build 5132,  wtbi ce27, 4th owner
2007 Solara convertible
2 prodeco tech outlaw ss electric bikes

1095 watts solar
08 Ls 460 and a sc430
2000 Ford F-250 superduty 4x4

Re: Rear RTU not working.

Reply #2 –
Move a breaker from something your not using, if cycling the breaker does not work. Mine are all 20 amp.
Old Phart Phred, EIEIO
89 GV ored 36' #3405 300 hp cat 3208 ATAAC side radiator, mountain tamer exhaust brake

Re: Rear RTU not working.

Reply #3 –
Check the connections at the wire nuts where the coach wiring enters the air conditioner. I had one melt down there.
John Duld
1995 U320C SE 40'

Re: Rear RTU not working.

Reply #4 –
It might be the only thing wired to one leg of your 50Amp service.
Tom Lang K6PG (originally  KC6UEC)
and Diane Lang
2003 38 U295 build 6209
2016 Jeep Grand Cherokee Summit Ecodiesel
still have tow-ready 2006 Acura MDX 
Temple City, California
Motorcade 16681 California Chapter President
SKP 16663 member of SKP Park of the Sierra, Coarsegold California
FMCA F071251
Retired electrical and electronic engineer

Re: Rear RTU not working.

Reply #5 –
Quote from: Tom Lang –
It might be the only thing wired to one leg of your 50Amp service.
Success!
Tom wins a prize.
  What I also discovered between my last post and now was that the left side of the coach had no power.  At first I thought it was the GFCI in the bathroom, but it was not.  Then noticed that I had no incoming power indicated, so, out to the power plug where my surge protector was indicating no power on one leg.
  Was a bad breaker and got switched out.  All is good now.
  Thanks for the suggestions.
In restless dreams I walked alone.
Narrow streets of cobblestone.


'93 U225
Build 4337
'14 CRV Toad
 

Re: Rear RTU not working.

Reply #6 –
Great.
"Not so  long ago we were a nation of risk takers, riding five million pounds of  thrust straight into space."  Joe Gresh
Chuck Pearson
1996 U295
2018 Can Am X3 TurboRS