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I have a Rheem Tankless water heater that doesn't heat the…

Customer Question
I have a Rheem Tankless...
I have a Rheem Tankless water heater that doesn't heat the water. The blower comes on for only maybe 10 seconds, and I feel hot air coming out, but then it turns cold and in a few seconds, shuts off...
Can you give me a clue?
Submitted: 2 years ago.Category: HVAC
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Answered in 6 minutes by:
2/14/2016
HVAC Technician: Rick, HVAC Supervisor replied 2 years ago
Rick
Rick, HVAC Supervisor
Category: HVAC
Satisfied Customers: 24,624
Experience: 40+ yrs. experience as a licensed oil & gas technician.
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What are you getting for an error code?

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Customer reply replied 2 years ago
I can't see the panel to see any error codes, a wall was built over it. Do I need to get into that wall? Or is there another way to diagnos?
HVAC Technician: Rick, HVAC Supervisor replied 2 years ago

You need access to the display.

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Customer reply replied 2 years ago
error code 34
HVAC Technician: Rick, HVAC Supervisor replied 2 years ago

This error can be due to restrictions to air flow around the unit. Could be that wall that's so close you couldn't read the display. Un plug the unit then plug it back in and try again but I suspect you may need to take down that wall if you haven't already

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