ravikumarj
12-28-2009, 12:24 PM
I happened to repalce a new heater Unit in Di 3510.
after replacing getting error code C0521.
In this model there is a small reset swith on the main panel near ON/OFF switch. I ve activated reset procedure the Panel shows pl wait then again the same error code appears.
But... I ve not done the resetting with opening the front cover!!!! as stated above.
Also I ve tried with old heater unit but it appears the same error code, does not reset.
Kindly confirm and help me.
Thanks in advance.
after replacing getting error code C0521.
In this model there is a small reset swith on the main panel near ON/OFF switch. I ve activated reset procedure the Panel shows pl wait then again the same error code appears.
But... I ve not done the resetting with opening the front cover!!!! as stated above.
Also I ve tried with old heater unit but it appears the same error code, does not reset.
Kindly confirm and help me.
Thanks in advance.