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TwinTemp Preventive Maintenance Schedule 

It is recommended that the TwinTemp be inspected by a qualified service 

technician at least once a year.

 

1. 

Clean interior of TwinTemp cabinet including 
combustion air intake grill. 

***

 

2. 

Inspect all wiring connectors for corrosion and 
looseness.  Tighten and or repair if needed. 

***

 

3. 

Performance test heating and hot water functions.

 

***

 

4. 

Check interior and exterior plumbing connections 
for fluid leak. 

**

 

5. 

Check propane connections for leaks. 

** 

6. 

Check boiler antifreeze level in overflow tank.

**** 

7. 

Drain and refill boiler antifreeze.

  

***

 

(Use only Rhogard boiler antifreeze or equivalent with 
Aluminum tank)                           

8. 

 

Rotate Mixing valve knob clockwise and counter 

clockwise.  

**

 

9. 

All faucet aerators and showerhead screens in the 
coach should be cleaned regularly.

  

***

 

**    Bi-Annually 

***   Perform every 12 months 

****  Bi-Monthly 

       

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