Troubleshooting - Pro Spot PHS-101 Instruction Manual

Battery operated dc spot welding system
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7 Troubleshooting

1. The display says "Low Voltage" on Batt1 display line.
This indicates that Battery 2's voltage line reached the minimum safe operating voltage and has been disabled. The
battery is not available for welding and is being charged automatically (if welder is plugged in). An alarm will sound
when attempting to weld if "Low Voltage" alert is displayed. To clear "Low Voltage" alert and continue welding with
remaining batteries, turn off the switch (Batt2 in this example) and welding can continue. When Battery 2 reaches
13.8V it will be available to use again when the switch is turned on.
IMPORTANT:
Do not leave the batteries in a discharged condition. Charge Immediately.
2. The display shows "SERVICE" on Batt 3 display line
This alert indicates that the battery voltage has fallen below 11.5V and the battery needs to be replaced (Fig. 3). The
charger will not attempt to charge a battery that has discharged this low, as doing so might cause the battery or
charger to overheat.
3. The display says "Check Battery Water Levels"
This indicates that it is time to perform a battery water level check (see section 4.3.4). This alert is triggered based
on accumulative battery charge time. It is extremely important to maintain correct water levels. Failure to do so will
result in failure of batteries and warranty is voided.
4. Low weld power
welder appears normal.
- Check power cable for voltage reading.
- Check small breakers on back of panel, the breakers are resettable by pushing the breaker.
5. The gun is closing the weld tips but not welding.
- Make sure the weld switch is in weld mode and not in Batt test mode.
- Battery switches off?
- Batteries may be in disabled mode due to a "Low Voltage Condition" See low voltage alert.
6. Single Sided gun trigger does not work or seems intermittent.
The welder is programmed with 5 sec delay between welds to conserve power and prevent overheating.
All Info Copyright © Pro Spot International Inc.
Batteries not charging; Fan is not on, but otherwise the
&
Electrode Squeeze Force vs Gauge Pressure
7 Troubleshooting
Page 33
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