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My ups is not working in during main power failure (online ups not working)so what i want do ?

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This usually the battery has failed or worn out and cannot supply power to the inverter to maintain mains power.
The charging circuit may have failed and cannot charge the battery.
My guess is the battery has failed and a new battery is needed.

Posted on Feb 25, 2012


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Posted on Jan 02, 2017


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1 Answer

What is error code H4-00

From the manual -

Entering the simulation mode
1) #/P key (program) ON ? Asterisk (*) key ON ? CLEAR key ON ?
Asterisk (*) key ON ? Ready for input of a main code of simulation

H4 00 Content Main heater lamp abnormally low
temperature detection
Details The setup temperature (about 90°C) is not
reached within the specified time (about
17sec) from turning on the power ON SW.
(When the temperature of main heater
lamp thermistor falls below 140°C in the
standby mode or printing.)
Whether temperature of main heater lamp
thermistor falls below 50°C in the pre-heat
Cause Main heater lamp thermistor defect
Main heater lamp failure
Main thermostat failure
Control PWB failure
Check the heater lamp blinking with SIM 5-
When the lamp blinks normally:
Check the thermistor and the harness.
Check the MCU PWB thermistor input
When the lamp does not light:
Check for disconnection of the heater
lamp and thermostat.
Check the interlock switch.
Check the power PWB and the MCU PWB
lamp control circuit.
Clear the display of self-diagnostics with
SIM 14. Online Virus Removal 39 99 Online Virus Removal and Online PC Help

Dec 19, 2014 | Toshiba e-Studio 350 Copier

1 Answer

Is there any battery backup system or rescue device for treadmill during power failure ?

I dont believe you would have any luck finding a back up power supply for a treadmill during a power failure,

except for a generator, but there loud, heavy and expensive, however if you experience power failures often there not a bad investment.

Nov 01, 2013 | Computers & Internet

1 Answer

APC BACK-UPS ES 500VA fails to provide back up during power failure

Get APC Powerchute Personal Edition for free and run it. If it says your battery isnt charged, check its voltage disconnected. Charge it with a car battery charger and see if its still a good battery. If not , replace it. If the battery is good, then check the charging voltage. Should be about 14 volts. if not, check the small transformer on the main board. Should be 120 in and 17 to 18 out. 4 diodes in a bridge for charge. The input to the transf has small fuse into it alone.

Jan 04, 2013 | APC BE500U ES 500 USB BACK-UPS 500VA/300W...

1 Answer

My inverter (500 va) (battery based electric generator for power backup) keeps on charging batteries even when the charging light goes off making the inverter, wires and battery very hot.

This a possible failure of the voltage detection circuit in the inverter main board and requires the fault be identified by checking the voltage/current feed/limiter to the battery.
Once when the battery voltage has reached the threshold set up the charging should stop and then the circuit will analyse the voltage on the board to trigger the charging to be put ON.
This can be a failure of the detection circuit and if not checked can damage the battery.

Jun 20, 2011 | APC American Power Conversion Back Ups Es...

1 Answer

No picture or sound,TV made a clicking sound then went blank

hello, this usually indicates a failure, at the power supply board. to confirm this, you have to check the stability of the out put voltage. during the failure occurs. in a rare case the main board is the cause to confirm this, need to check the returen voltage from the main board to the power supply

May 23, 2011 | LG 37LC2D Television

1 Answer

My LG ld550 32 turns off by itself then I turn it on again and stays on for a few minutes and turns off again

hello, this usually indicates a failure, at the power supply board. to confirm this, you have to check the stability of the out put voltage. during the failure occurs. in a rare case the main board is the cause to confirm this, need to check the returen voltage from the main board to the power supply. good luck!

May 23, 2011 | LG 32LD550 32 in. LCD HDTV

1 Answer

Power went off when power was restored my dishwasher was peeping and would not go on. I closed circuit breaker for one minute restored it dishwasher still not working. peeping

This happens and it is our bad luck!

During sudden power failures and restoration, some times the electronics go faulty. You have to check the main electronic control board.

Sep 08, 2010 | Dishwashers

1 Answer

My hp clj 2600n printer wont stop reading initialzimg on control panel machine not spinning

This is the Power On Sequence

Power-on sequence
The power-on sequence is for the purpose of the printer initialization and checking for possible malfunctions.

The following is the sequence from when the printer is turned on until it enters STBY mode.

  1. Power on
  2. Central processing unit (CPU) initialization
  3. ASIC initialization
  4. Video interface communication start
  5. Residual paper check by each sensor signalling paper presence
  6. Initial drive for main motor, pickup motor, and fuser/delivery motor
  7. Fuser heater initial drive by controlling fuser temperature targeting for 100°?C
  8. Initial drive for scanner motor
  9. Failure/Abnormality check
    • Detect scanner failure
    • Fuser failure
    • Door open during the above periods
  10. Communication with memory tag
  11. Cartridge presence detection
Main motor failure detection
The CPU determines the main motor failure, stops the printer, and notifies the formatter of error
status, when it encounters the following conditions.

  1. Main motor start-up abnormality.
The interval of the MAIN MOTOR SPEED DETECTION signal (/MAINMFG) does not become the specified interval after 1000 ms of the main motor drive start.
  1. Main motor rotation abnormality. The interval of the /MAINMFG signal stays at an irregular interval for 100 ms and longer after once it has become the specified interval.
Fan motor failure detection
The CPU determines the fan motor failure and notifies the formatter when it encounters the following

The FAN LOCK signal (FANLCK) is “H” for approximately 10 seconds and longer during fan motor

Your description makes it sound as though the printer has a main CPU failure as all other faults should display an error or error code. In the light of this it seems that the printer will need to be looked at by a service engineer asap.

Sep 21, 2009 | Office Equipment & Supplies

1 Answer

Error (E7)during auto set up

An internal system error occurred.

Repeat the AUTO SETUP procedure

Aug 30, 2007 | Yamaha YSP1000 Main / Stereo Speaker

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Jul 05, 2018 | Toshiba Computers & Internet

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