Hi,
Today I called ducted heater manufacturer for service call as heater didn't respond to start few days back. Guy came and checked the heater and said there is nothing wrong with the heater. Then he went on the roof and removed the vent cover and started heater again and it worked this time. He told me that installer didn't put correct vent cover. I asked him how it did work for three years as it is working from last 3 years (age of my house). He couldn't answer. Now there is no cover to vent. He asked me to contact my installer for its replacement.
I will contact installer and see what they say but in the meantime the vent is open and what if it rains or birds go inside the vent?
Could you please let me know if this should be of any worry for few days?
Thanks,
Regards