Recent Posts

31

Technical Support / No low beam headlights, High beam okay

« Last post by Allen Heath on August 23, 2026, 03:31:07 AM »

I'm new to this forum and have been unsuccessful searching for previous topics on my problem.  My current new problem is no low bean headlights, but clearance and high beams work.  I pulled out a headlight bulb, jumpered juice straight to the pins, and both filaments work.  I'm getting lost looking in the FRB for anything obvious (no brown wires or connectors indicating a burning problem), or even places to test for proper voltages. The labels on the board that I think has something to do with the headlights seem confusing in that when I move the steering stalk for High or Low beams green LED indicator lights D5 and D2 (D5: LI HI BEAM RELAY OK, D2: R HI BEAM RELAY OKAY) aren't making sense to me.  Both say for the High Beam Relay but when D5 is on D2 is off, and when D5 is off D2 is on ... but they both say High Beam???.  What connector on that board would have the output LOW beam voltage?   Low beams were working as I recently came home in the rain and they came on with the wipers as they always used to.  After I parked at home a few days later I was taking the coach to storage about dusk and noticed no more low beams.  Coach is '07 Patriot Thunder.  I'm trying to attach pictures of the board's LED indicators.

32

Technical Support / Re: Receiver Drier part number??

« Last post by Fred Brooks on August 19, 2026, 01:00:58 PM »

   Brian,
 I am the guy in the tool truck and admit "I am a tool junkie" Ha Ha, thanks for reminding me. Fred

33

Technical Support / Re: 3rd issue

« Last post by Joel Ashley on August 19, 2026, 12:39:13 AM »

Freon?
or coolant?

34

Technical Support / Re: 3rd issue

« Last post by Frank Bergamo on August 18, 2026, 09:21:14 PM »

Low on freon or oil!

35

Technical Support / Re: 3rd issue

« Last post by George Frudakis on August 18, 2026, 09:09:20 PM »

Found the issue, 41/2 galons low on Freon. I can't believe that, just after I paid for complete engine service, which included all filters and oil, before my trip. She's running cool and strong now.

36

Technical Support / Re: Two isusses

« Last post by George Frudakis on August 18, 2026, 09:05:05 PM »

All water outlets are hot

37

Technical Support / Re: Receiver Drier part number??

« Last post by Brian Fahlgren on August 18, 2026, 01:22:08 AM »

Fred, having tech advice from a 49 year tech is greatly appreciated!! I spent most of my career calling on shops in my tool truck. I'd always joke that I knew who upset the service manager last because that guy would be out working on a motor home. You have my respect. Yes, there is a trinary switch just off the dryer. The only test I've done was putting 12 v to the fan with a Power Probe. I know the fan is good. Didn't get time today, but tomorrow I'll check voltage at the switch. Thank you again!

38

Sources for Suppliers, Parts and Maintenance Materials / Re: Racor Filtration System

« Last post by Eric Drickersen on August 17, 2026, 07:06:09 PM »

Just closing the loop on this post. Thanks for the assist, I purchased the o-rings and cleaned up the scuff on the plastic filter and the unit is working perfectly. I also took the advice of replacing the 1/4" tubing as a preventative measure. Thanks again to all!

39

Technical Support / Re: Receiver Drier part number??

« Last post by Fred Brooks on August 17, 2026, 06:00:10 PM »

      Brian,
    Somewhere near the dryer perhaps on the expansion valve side you should find the trinary or binary switch. This cycles on and off according to the temperature inside the evaporator. The other purpose of this switch is to save the compressor in the event the freon leaks, it removes the 12volt power to the compressor and the condenser fan if the internal pressure falls below the threshold setting of the manufacturer. Check to see if 12volt power is present at the switch when the a/c is on. Fred

40

Technical Support / Re: Receiver Drier part number??

« Last post by Brian Fahlgren on August 17, 2026, 01:35:38 AM »

Just in case someone in the future needs this part number, here it is. There was a label on the dryer when I removed. It was a Parker brand, part number 110992. I couldn't find it on any Parker site, nor was I able to cross-reference the part number. Searching online, I found Aero Climate Control. Their part number, 1901000, was almost a perfect match. It was only $18.00, although freight was $26.50 lol. Pulled a vacuum for an hour. It sat for over 3 hours before I got back to it. It held the vacuum, so I recharged the system. I ran a portable fan aimed at the condenser while I did the re-charge. The coach's condenser-mounted fan never did kick on. The fan will run when I apply 12 volt directly. Now I'll be searching this site for a solution to that too. All to be expected with a 26-year-old coach!