Rheem Hybrid water heater and error code A005

So I'm still on my journey with this error code A005. So couple of weeks ago this alarm came in. I had noticed that it was not heating via the heat pump as well - running for much longer. So call Rheem - their support number for Hybrid water heater is 800-995-0982 by the way. You will have the option for them to call you back - take it - normal wait time has been at least 90 minutes. But I have call them 3 times now - 3 different techs - and each time have been very impressed with their knowledge and helpfulness. They had me go into a diag mode that showed what the 4 temp sensors in the unit were reading (DT-Discharge Temp, ST - Suction Temp, ET - Evap Temp, and AT - ambient temp. According to the tech these units have an issue with the Evap temp sensor going bad - that causes the unit to not operate correctly - can cause the DT temp to go high. If it reaches 200 degrees it will cause the unit to shut down and generate that A005 error. The reading on the ET sensor - according to them - confirmed that it appears to be bad. The fix is to replace that EV temp sensor. So the part came in yesterday - and I decided to do it myself since it looked fairly straightforward. These 4 sensors are all the same type - and they are called thermoresistors. These sensors change resistance depending on the temperature they measure. I wanted to measure the resistance of the new one - and compare it with the old one. The new one read open on my ohm meter - the one in the unit - after I removed it - read like 5700 ohms. Another call to the Rheem support - they agreed that its bad - and another one is suppose to be overnight-ed. I reconnect power (my wife for some reason expects hot water) - and immediately got error code A105 - EV temp sensor failure (I did not re-install the old one). Confirmation I removed the correct one anyway. Set it for electric heating - and made wife happy. So assuming tomorrow the replacement part will come in and I can conclude this fix. If I have other issues - like it did not fix it - I'll try to update this comment. Now for the less than pleasant experience. This A005 error occurred during the 1 year labor/part coverage from Rheem. But their support vendor in Charlotte, NC that they tried to dispatch the trouble to did not want to take this trouble (declined it per Rheem) - so they sent me email telling me to call my own HVAC person and they would reimburse up to $150. Another call to clarify THAT - what if the tech charges $200 - am I'm on the hook for the difference? They raised it to $250 - but I'm a bit annoyed that I was stuck into the position to have to call someone myself - but it is what it is. I did feel Rheem would cover whatever a reasonable expense might be. But now you have 2 choices - you pay the HVAC tech for the labor cost - or you have them submit the paper work to Rheems and have Rheem pay them. I doubt my HVAC folks are going to agree to that - they would look to me to pay them since they have no official relationship to Rheem. Also the HVAC folks I work with I'm sure never worked on a Rheem but I have no doubt they could do this work because of the simple HOWTO that Rheem provided for this fix. I instead call Home Depot extended warranty folks - who covers labor - and I had purchased that extended warranty - and I'm still waiting on their service center (wherever THAT is) to contact me - they said could take 2 business days - meaning I should hear from them tomorrow - but since the repair was pretty easy I did it myself. I would not recommend this for the average person - get a HVAC tech to come it if you find yourself in similar situation. Call Rheem and they will email you the HOWTO info that you can hand over of a HVAC person... ​ I don't want to leave folks with a negative impression of Rheem and this hybrid model - it worked VERY well over the hot summer (I pulled attic air via a 8 inch duct when the heat pump is running - 120 degrees air in the attic by 1:30PM - to gain more efficiencies . My cost to heat water was like 10 cents per day (I monitor power usage on that circuit). And my impression of their support techs is very high - very helpful and knowledgeable and patience. And they are located in Alabama - not some call center in India. Hopefully when the new part is installed this story will have a happy ending... submitted by /u/4romany [link] [comments]

So I'm still on my journey with this error code A005. So couple of weeks ago this alarm came in.

I had noticed that it was not heating via the heat pump as well - running for much longer.

So call Rheem - their support number for Hybrid water heater is 800-995-0982 by the way.

You will have the option for them to call you back - take it - normal wait time has been at

least 90 minutes. But I have call them 3 times now - 3 different techs - and each time have

been very impressed with their knowledge and helpfulness. They had me go into a diag mode

that showed what the 4 temp sensors in the unit were reading (DT-Discharge Temp,

ST - Suction Temp, ET - Evap Temp, and AT - ambient temp. According to the tech

these units have an issue with the Evap temp sensor going bad - that causes the

unit to not operate correctly - can cause the DT temp to go high. If it reaches

200 degrees it will cause the unit to shut down and generate that A005 error.

The reading on the ET sensor - according to them - confirmed that it appears to be

bad. The fix is to replace that EV temp sensor. So the part came in yesterday - and

I decided to do it myself since it looked fairly straightforward. These 4 sensors

are all the same type - and they are called thermoresistors. These sensors change

resistance depending on the temperature they measure. I wanted to measure the

resistance of the new one - and compare it with the old one. The new one read open on

my ohm meter - the one in the unit - after I removed it - read like 5700 ohms.

Another call to the Rheem support - they agreed that its bad - and another one

is suppose to be overnight-ed. I reconnect power (my wife for some reason

expects hot water) - and immediately got error code A105 - EV temp sensor

failure (I did not re-install the old one). Confirmation I removed the

correct one anyway. Set it for electric heating - and made wife happy.

So assuming tomorrow the replacement part will come in and I can conclude

this fix. If I have other issues - like it did not fix it - I'll try to

update this comment. Now for the less than pleasant experience.

This A005 error occurred during the 1 year labor/part coverage from Rheem.

But their support vendor in Charlotte, NC that they tried to dispatch the trouble

to did not want to take this trouble (declined it per Rheem) - so they sent me

email telling me to call my own HVAC person and they would reimburse up to $150.

Another call to clarify THAT - what if the tech charges $200 - am I'm on the hook

for the difference? They raised it to $250 - but I'm a bit annoyed that I was

stuck into the position to have to call someone myself - but it is what it is.

I did feel Rheem would cover whatever a reasonable expense might be. But now you

have 2 choices - you pay the HVAC tech for the labor cost - or you have them submit

the paper work to Rheems and have Rheem pay them. I doubt my HVAC folks are going

to agree to that - they would look to me to pay them since they have no official

relationship to Rheem. Also the HVAC folks I work with I'm sure never worked on

a Rheem but I have no doubt they could do this work because of the simple HOWTO

that Rheem provided for this fix. I instead call Home Depot extended warranty

folks - who covers labor - and I had purchased that extended warranty - and I'm

still waiting on their service center (wherever THAT is) to contact me - they

said could take 2 business days - meaning I should hear from them tomorrow - but

since the repair was pretty easy I did it myself. I would not recommend this for

the average person - get a HVAC tech to come it if you find yourself in similar

situation. Call Rheem and they will email you the HOWTO info that you can

hand over of a HVAC person...

I don't want to leave folks with a negative impression of Rheem and this

hybrid model - it worked VERY well over the hot summer (I pulled attic air

via a 8 inch duct when the heat pump is running - 120 degrees air in the

attic by 1:30PM - to gain more efficiencies . My cost to heat water was

like 10 cents per day (I monitor power usage on that circuit). And my

impression of their support techs is very high - very helpful and knowledgeable

and patience. And they are located in Alabama - not some call center in India. Hopefully when the new part is installed this story will have a happy ending...

submitted by /u/4romany
[link] [comments]