Bosch AquaStar 2400ES-NG  "ec error codes" Questions

...ec error). Didn't figure it was a gas supply problem after five years but double checked to see if the gas bill was paid. It was. Cleaned the contacts on the two sensors that are clamped to copper ...

...error code EC keeps appearing Q. EC - Ionization failure during operation A. Verify gas type (See Fig. 2 in installation manual) corresponds with the type of gas supplied to the heater. Verify the ...

error code "EA" flashes on the desplay pannel and it tries three or so times to start and then just flashes that symbol and im sick of cold water so if you have ant sort of advice that might help me i

...EC code is 'ionization failure during operation' Open link for error codes and 5 possible steps that might need service technician. ...

...EC and/or EA errors, and no hot water. Sometimes restart will work. Bosch customer support is useless. I also thought of making a cover over the flue, in case problem was due to snow/ice/rain. Any ...

Error codes E1 and most recently EC. We have been geting fluctuating hot and cold and now only cold water. I have replaced the OTS, cleaned the inlet filter screen, descaled the tank, with no success.

...EC or EA code you have gas problems (meter, line size/length or gas valve). Also if 3005 or 3007 Software you can pull the last 5-10 error codes from Controller. You need to call Bosch and get an RSA ...

...error code EC: Ionization failure during operation. set point temperature = 106, inlet water temp = 88, outlet water temp = 171, water flow = 12, burner power = 20. Before calling service technician ...

...EC error codes? To unplug the fan you really have small hands. Fan is a unit not just motor, explosion proof and costs over $330. If that was a popping or staccato noise it wasn't the fan but the gas ...

...error could be caused because the water heater is only making three attempts to fire and then shutting down. These water heaters are very complex and have many sensors,valves, ect that are all ...