How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask BillyHvac Your Own Question
BillyHvac, Journeyman HVAC Tech
Category: HVAC
Satisfied Customers: 22508
Experience:  Endorsed for unlimited heating, cooling, oil burners, boilers, refrigeration, hydronics
Type Your HVAC Question Here...
BillyHvac is online now
A new question is answered every 9 seconds

Working on a Rheem hot water tank which is giving me a code

Customer Question

working on a Rheem hot water tank which is giving me a code of vapor sencor. replaced senser. still giving same code. ordered a new gas valve from wholesaler and still waiting 2 weeks and part is not in yet. can I bypass the sencer code to allow this heater to work. there is nothing in basement which cause this alarm. my client is getting very fruastrated and just wants heater replaced. the model # is PRO+G40S-36N CN67 PV. serial # is Q421412837.
Submitted: 9 months ago.
Category: HVAC
Expert:  BillyHvac replied 9 months ago.


My name is ***** ***** I will do my best to assist you. I am looking over your question now and will respond shortly.

Expert:  BillyHvac replied 9 months ago.

have you tried the reset yet?

Shut off water heater for ten seconds 2. Turn on water heater and within 10 seconds press and hold both of the adjustment arrows at the same time until the green light blinks. Take finger off arrows. 3. Enter this sequence with the left/right arrows: L, R, L, L, R, L, R, R.

Customer: replied 9 months ago.
No because I could not find those instructions in the trouble shooting manual.
Expert:  BillyHvac replied 9 months ago.

They did not put them in manual...why I will never know.

Now if it becomes an issue with multiple resets then I would replace the assembly.

When can you try this code?

Customer: replied 9 months ago.
I am not near the heater at this time. Will not be there until tomorrow. The client has asked me to replace the tank. I will be getting one in the morning and take it to the building because it is a hour drive. I am located in fort mcmurray alberta canada. I will try your your suggestions at that time.
Expert:  BillyHvac replied 9 months ago.

I understand.

I really wish you the best on the project.

If you have any follow questions just reply back here.


Customer: replied 9 months ago.
Thank you. Hope this works.
Expert:  BillyHvac replied 9 months ago.

so a response is not forced from me by the system...either keep this on your side without responding, or rate the service at top of page.

The system is set up that if you respond without rating it forces me to reply.