Re: edenpure USA 1000 infrared quartz heater

There is no fuse of any kind.

Fan is switched by Q3. uC pin 6 through R8 (621) to top pin of Q3 Line in on bottom pin of Q3 out to fan terminal F from heat sink tab(same as middle pin).

R1,2,3,22 C1,2, RY1, D1, 2 are the low voltage power supply. 120V AC to low voltage zener regulated DC for uController and front panel circuit board.

Pictures of both boards front and back and basic wiring diagram from inside of case....

Re: edenpure USA 1000 infrared quartz heater

This is an old thread but I can add some info and will post a pic of the back of the PCB.

USA1000 model

Line goes through the Triac and then through LTL to the normally closed thermal switch back to the board through TL to the heating element connectors H1 and H2.

Neutral goes straight to NF, NH1 and NH2.

No components on back side of PCB.

C1 = .047mF

D1 = ON Semi Z2W
D2 = 4007

Q1 = BTA25-6CWG
Q2 = K1N X9
Q3 =...