my direct vent FP, made by Montigo Del Rey now makes a faint beeping sound when I turn it on, and the igniter is not sparking. I cleaned the thermocouple and thermopile recently. this is a glass enclosed FP. I just took a torch and heated up the 2 "thermos" . I then turned on the switch, and the beeping went away, the ignitor sparked, and it lit beautifully. Any idea what the fix is? thanks much for nay help!