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Rinnai tankless water heater. Exhaust fan comes on briefly
Rinnai tankless water heater. Exhaust fan comes on briefly when cold water tap used or toilet flushes. … read more
Tamar D
Tamar D
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Vocational, Technical or Trade School
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Cliff
Cliff
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Code 12 is displayed on unit-- directing to a combustion air
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Phil
Phil
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Rick
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BillyHvac
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canuck the pro
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airheatman
airheatman
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BillyHvac
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Hi, I had a problem with my furnace, which is now working.
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Phil
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I have a Rheem imperial high efficiency natural gas furnace
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Mike
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my hotwater heater is a rheem pvw 50. The blower comes on,
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Meet the Experts:

Phil

Phil

Mechanical Engineer

8,427 satisfied customers

Retired HVAC/ Electrical & Boiler contractor. Industrial

Rick Mather

Rick Mather

HVAC Technician

3,133 satisfied customers

35 years experience, HVAC

Matthew

Matthew

HVAC Technician

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14 years experience in the HVAC field of service, installation, Manual J & D calculations

Brian HVAC Guy

Brian HVAC Guy

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I have been an HVAC/R mechanic/technician for 30+ years.

Kenton Guidry

Kenton Guidry

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12 years install/service experience.

Tom

Tom

HVAC Technician

770 satisfied customers

16+yrs HVAC/R service. Residential Commerical Industrial

A-1 Tech

A-1 Tech

Service Manager

526 satisfied customers

I have been in the HVAC business for over 40 years.

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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

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