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Phil, Mechanical Engineer
Category: HVAC
Satisfied Customers: 6022
Experience:  Retired HVAC/ Electrical & Boiler contractor. Industrial
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I have a Richman tankless water heater modelRMTG-74 pvp

Customer Question

I have a Richman tankless water heater modelRMTG-74 pvp Serial no. RMLP0505p000241 It shows a code of 21 on the control screen the manual says the filter needs cleaned, where is the filter i can not locate it?
JA: How long has this been going on? And how severe is the problem?
Customer: It just quit heating yesterday, the fanturns on a few seconds thenshuts down.
JA: Do you plan on doing the work yourself?
Customer: yes
JA: Anything else we should know to help you best?
Customer: At present i dont know of any thing else.
Submitted: 4 months ago.
Category: HVAC
Expert:  WCohn replied 4 months ago.

Hello, my name is ***** ***** I look forward to helping you!

Expert:  WCohn replied 4 months ago.

Are you still in need of help?

Customer: replied 4 months ago.
Customer: replied 4 months ago.
on line answer,do not want to talk by phone.
Expert:  WCohn replied 4 months ago.

That's fine the phone request is automatic and not from me. The screen is the inlet water filter. It's just below the cabinet where the cold water enters the unit.

Expert:  WCohn replied 4 months ago.

Any luck?

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