thava Siva RCQ4204
He was the technician who fixed my heater. He"s such a nice guy. Polite and courteous. He explained to me that I need to check the battery of the thermostat yearly . He there are other reason why the heater will stop and that is good to know. in this frigid weather and not having heater for the whole day and night ...he is my saviour . Thank you Thava. Good Work!!!