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Old 11-22-2018, 08:26 PM   #1
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State: California
Posts: 41
THOR #10562
23TB Gemini water pump location

I am having water pump issues... sputtering faucet, inconsistent hot water. Can someone tell me where itís located, so I can check the Filter screen... also the adjustment for the tankless water heater
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Old 11-29-2018, 06:56 PM   #2
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Brand: Thor Motor Coach
Model: Compass 23TB
State: British Columbia
Posts: 30
THOR #13560
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Originally Posted by LAdriver View Post
I am having water pump issues... sputtering faucet, inconsistent hot water. Can someone tell me where itís located, so I can check the Filter screen... also the adjustment for the tankless water heater


I have a compass 23TB which I believe is identical. Access to the water pump is through the rear exterior storage compartment. Open that compartment, look inside to the left - there is sort of a shelf/alcove. At the far end of that there is a board with a hole in it and a couple of screws. Remove the screws and use the finger hole to pull the panel off - voila! You should see your water pump! Iíve used stick on Velcro for the panel instead of the screws as Iím going to be going in and out of that compartment a lot!
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Old 11-29-2018, 07:07 PM   #3
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Brand: Thor Motor Coach
Model: Compass 23TB
State: British Columbia
Posts: 30
THOR #13560
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Originally Posted by soarin76 View Post
I have a compass 23TB which I believe is identical. Access to the water pump is through the rear exterior storage compartment. Open that compartment, look inside to the left - there is sort of a shelf/alcove. At the far end of that there is a board with a hole in it and a couple of screws. Remove the screws and use the finger hole to pull the panel off - voila! You should see your water pump! Iíve used stick on Velcro for the panel instead of the screws as Iím going to be going in and out of that compartment a lot!
I should mentioned....rear exterior storage compartment on the Driver's side! LOL
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Old 12-23-2018, 12:53 AM   #4
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Brand: Thor Motor Coach
Model: Compass 23TB
State: Indiana
Posts: 7
THOR #10682
I have a Compass 23TB also. I found trying to do anything through the little access hatch in the rear compartment is nearly impossible, (at least for a fellow my size.) It is much easier to simply remove the outside shower by removing the screws around it's perimeter, pull it out and you will have full access to the water pump and screen filter.
I found my screen filter to be packed full of what looked like white drill chips from when they drilled holes in the water tank.
If you find drill chips in your filter, I would also suggest you remove the water tank fill port from the side of your motorhome where you will probably find the tank vent hose is also plugged with chips.
In regard to the water heater, the only adjustment is a flow control which you can access by removing the drawer above the electrical panel. I don't recommend you change the flow control until you have exhausted other possible causes for your trouble.
The water heater will not work correctly if there is air anywhere in the water lines. Make sure you flush the toilet, run both hot and cold in the shower, kitchen sink, bathroom sink and don't forget the outside shower. Run water through all the fixtures until sputtering stops.
We have found the best way to use the water heater is to set the thermostat at a temperature you find comfortable, (I like about 102 degrees depending on the incoming water temperature) and turn on only the hot water in the shower. If the water heater is cycling on and off there is most likely still air in a line somewhere.
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Old 01-09-2019, 04:13 PM   #5
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Brand: Thor Motor Coach
State: Nova Scotia
Posts: 12
THOR #14078
Water pump TK

Does anyone know how to access the water pump on the Gemini TK. The difference between it and the other Geminiís is that the slide is at the dinette.
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Old 01-09-2019, 05:26 PM   #6
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State: California
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THOR #10562
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Originally Posted by soarin76 View Post
I should mentioned....rear exterior storage compartment on the Driver's side! LOL


I have found it sometime ago thank you. I also found a lot of plastic shavings just before the strainer... an unbelievable amount of hose shavings... very poor workmanship! Between this and adjusting the water flow... everything seems to be working fine now
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