Blown fuse? i have a quiet zone - power does not seem to be getting to the unit after seeing a flashing '90' in the display screen. my best guess is that it's a blown fuse in the unit? any ideas how to proceed would be appreciated.

It is possible that there is a fuse inside the Comfort Zone Fireplace Heater model # CZFP20M that has blown, causing the artificial flame to stop working. You should check the owner's manual or contact the manufacturer to determine if there is a fuse in the unit and where it is located. It's also possible that the artificial flame stopped working due to a malfunction in the control module or other electrical component. In this case, it's recommended to get the unit inspected by a professional technician.

It's not uncommon for artificial flames to stop working, it could be due to a variety of issues such as a malfunction in the control module, a blown fuse, or a problem with the artificial flame itself. I recommend checking the owner's manual or contacting the manufacturer for troubleshooting steps or to see if there have been any known issues with the model you have. If you are unable to find a resolution or the problem persist, it's always best to get the unit inspected by a professional technician.

I hope this helps

https://www.youtube.com/watch?v=4pXdRX140Ic

Thanks

It sounds like there may be an issue with the head unit or the connection between the head unit and the battery. I recommend checking the connections between the head unit and battery to ensure they are secure and clean. Also check the fuse for the head unit and make sure it's not blown. If the connections and fuse are fine, it's possible there is a problem with the head unit itself and it may need to be replaced. If you are unsure about any of these steps, it's best to consult a professional mechanic or car audio specialist for further assistance.

Sounds like either a blown mainpower fuse or the thermal fuse for the power transformer. If the protect circuit was kicking in, the display would light up, but then turn off with a red blinking light. the green light with no display means the transformer is not getting power.

Hello Jacques,
This type of failure on this plasma is due to a defective IC that is mounted underneath the black heatsink located on the Ysustainer board. In order to isolate this failure to the Ysustainer board, I would suggest to check the fuses at location FS2 and FS3.
Here is more info for in regards to the Ysustainer board: REPAIR SERVICE FOR EBR31872801 YSUS BOARD FOR FLASHING DISPLAY TV NOT...

Most likely the unit does not receive power from main transformer. Possible several reasons:
- bad power transformer
- bad main internal fuse 7-8amp. Bad fuse most likely because of one of the channel is blown and shorts the power, so before installing new fuse good idea to check all channels by meter or at least visually for burned parts
- bad power relay
- bad connection, cracked soldering joints

Try setting the Unit to run full out, set unit at 66* it maybe the lights flash to let you know the save ( power) is on ?. Otherwise look for the manual and troubleshooter page .

time to reset the microprocessor. See page 87 in manual.
1) switch off the unit using the main unit's power operation (small power button)
2) hold the PURE DIRECT button and DIRECT button at same time and turn the main unit's power operation on.
3) wait for entire display to flash in 1 second intervals

now the speakers need to be set up again but zone 2 will be working. i suspect a power surge causes the microprocesser to be corrupted. i put a power surge protector and have not had problems (lately).

Repair service for power board B4K-50:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=110646032176

As stated in the listing there please note that there are unique board components that are not replaceable...so depending on the failure there's always a risk that the board may not be recoverable.

Hello!

Please do and verify any fuse blownout in the inlet of the power from the wall, if it is not visible then maybe you open the the back cover and try to see any parts that has error or blown. you should replace it with genuine replacement parts. however it hard to do this by a novice tech, My suggestion is to bring the unit to the nearest service center maybe the unit got warranty service or else maybe its a cheap or resonable cost.

may this help!

best regards, melnavz