02-13-2024, 08:27 AM
Finally got the heat controls back after speaking with both SilverLeaf and Newell. They suggested replacing the TM-220 Heat/Furnace controller module. Price from Newell was $380 plus shipping. Newell didn't have them in stock, so SilverLeaf sent them one and then to me. Replacement was simple as this and two other modules (A/C's) are located above the front entrance door. Remove two cabinet screws, pop the cover loose from the cabinet style latches, and the cover hangs down by some nifty support straps.
After replacement, I tested the heat and found that the bedroom and salon zones were working, but the galley zone still did not respond to any heat commands. The two working zones are Aqua-Hot heat, while the non-working galley zone receives heat from two Cadet heaters located below the dishwasher/sink area. Back on the phone with Newell and they suggested to send the module back and they would test on another coach similar to mine.
My coach, #1536, may be the last coach that used SilverLeaf before the switch to the Intrepid controls. I don't think SilverLeaf and Newell talk too much these days, as the communication between the two seems minimal. I'm not sure how the modules are programmed from SilverLeaf before going to Newell.
Newell quickly reprogrammed the module and overnighted it back to me on their dime. I know that no two Newells are alike and the coach not being in their shop made this more difficult to diagnose and repair. It should be noted that the programming for these modules can be performed with the OmniScope software running on a laptop connected to the CAN (RV-C) bus of the coach. SilverLeaf sells a license and USB connecting cable for this software for about $500.
One final note, the Tile ports on the TM-220 module are not used for tile floor heating. I believe these are handled by the TM-229 module located in the electronics bay next to the inverters.
After replacement, I tested the heat and found that the bedroom and salon zones were working, but the galley zone still did not respond to any heat commands. The two working zones are Aqua-Hot heat, while the non-working galley zone receives heat from two Cadet heaters located below the dishwasher/sink area. Back on the phone with Newell and they suggested to send the module back and they would test on another coach similar to mine.
My coach, #1536, may be the last coach that used SilverLeaf before the switch to the Intrepid controls. I don't think SilverLeaf and Newell talk too much these days, as the communication between the two seems minimal. I'm not sure how the modules are programmed from SilverLeaf before going to Newell.
Newell quickly reprogrammed the module and overnighted it back to me on their dime. I know that no two Newells are alike and the coach not being in their shop made this more difficult to diagnose and repair. It should be noted that the programming for these modules can be performed with the OmniScope software running on a laptop connected to the CAN (RV-C) bus of the coach. SilverLeaf sells a license and USB connecting cable for this software for about $500.
One final note, the Tile ports on the TM-220 module are not used for tile floor heating. I believe these are handled by the TM-229 module located in the electronics bay next to the inverters.
Rob
2016 Newell #1536