10-07-2024, 12:53 AM
Jack grab some coffee,
I've seen multiple posts with this same issue so I solved it.
There have been many posts about the Teddy heater under the salon couch quitting. when i rebuilt the entire aqua hot system i found some of the blowers didn't work. The teddy heater was one. I started by removing the couch to gain access to the heater box. turns out it was held down with 6 3/8ths lag screws. Once the couch was unbolted from the floor i flipped it up out of the way and revealed the problematic heater.
As you can see in the picture i used a test light to make sure i had power. Test light from MAC tools will test power and ground and if your arms are long enough test the whole circuit for continuity. Power was reaching the unit. I unplugged all the wires making sure i didn't arc them, not like finding decent grounds is easy in these coaches. From there i dismantled the entire assembly to get the electric motor out. My hope was that i could just source a new motor and slap it back together. Curiosity got the best of me. I removed the double squirrel cage by grabbing some pliers and undid the constant tension rings. I pulled the two squirrel cages off, grabbed a wrench and removed the two bolts that held the motor together. At which point I noticed the brushes were bad.
I have brushes, I can fix this! I went back to the coach I grabbed the spare March brushes and compared sizes.
They would need some filing but they would work. I filed the new brushes down,
test fit,
and then soldered them on. Once the brushes were appropriately sized I began to reassemble the DC motor. This took way longer than it should have (because i was fighting with the springs holding them back with one hand, trying to put things together) but I got it done.
Once the motor was reassembled a quick floor test with the battery showed the motor worked just fine. I replaced the squirrel cages and the constant tension rings, reassembled the motor into the housing with the heater core, put all the screws back in, and plugged in the wires.
Ha Ha! It works. At this point it was getting late and dinner needed to be done. Ill finish strapping the heater down and put the couch back tomorrow.
Moral of the story, you might not need a $300 heater you might need some cheap brushes and about two hours of time. For those wanting to have spares. a set like this on Amazon would fix just about everything including those Aqua hot pump motors.
https://www.amazon.com/RICHERI-Electric-...1_3?sr=8-3
And for once, my wife is happy I bought quality tools.
Don't mind my amazing green carpet, it's nasty and ugly and I'm going to replace the flooring before long. I've got 4 very large dogs, and carpet just wont work.
My wife would like to add... (No I'm not - I'm typing this for him because I type way faster than he does.
I've seen multiple posts with this same issue so I solved it.
There have been many posts about the Teddy heater under the salon couch quitting. when i rebuilt the entire aqua hot system i found some of the blowers didn't work. The teddy heater was one. I started by removing the couch to gain access to the heater box. turns out it was held down with 6 3/8ths lag screws. Once the couch was unbolted from the floor i flipped it up out of the way and revealed the problematic heater.
As you can see in the picture i used a test light to make sure i had power. Test light from MAC tools will test power and ground and if your arms are long enough test the whole circuit for continuity. Power was reaching the unit. I unplugged all the wires making sure i didn't arc them, not like finding decent grounds is easy in these coaches. From there i dismantled the entire assembly to get the electric motor out. My hope was that i could just source a new motor and slap it back together. Curiosity got the best of me. I removed the double squirrel cage by grabbing some pliers and undid the constant tension rings. I pulled the two squirrel cages off, grabbed a wrench and removed the two bolts that held the motor together. At which point I noticed the brushes were bad.
I have brushes, I can fix this! I went back to the coach I grabbed the spare March brushes and compared sizes.
They would need some filing but they would work. I filed the new brushes down,
test fit,
Once the motor was reassembled a quick floor test with the battery showed the motor worked just fine. I replaced the squirrel cages and the constant tension rings, reassembled the motor into the housing with the heater core, put all the screws back in, and plugged in the wires.
Moral of the story, you might not need a $300 heater you might need some cheap brushes and about two hours of time. For those wanting to have spares. a set like this on Amazon would fix just about everything including those Aqua hot pump motors.
https://www.amazon.com/RICHERI-Electric-...1_3?sr=8-3
And for once, my wife is happy I bought quality tools.
Don't mind my amazing green carpet, it's nasty and ugly and I'm going to replace the flooring before long. I've got 4 very large dogs, and carpet just wont work.
My wife would like to add... (No I'm not - I'm typing this for him because I type way faster than he does.
Carl Little
1996 Coach 435 Detroit 60
