CTEK Zafir 100 User Manual

Trouble Shooting Guide 1
XS 0.8
• No LED is lit when the charger is connected only to the battery
Explanation: The plug has to be connected for the LED’s to be lit.
• No LED is lit when the charger is connected only to the power outlet
Explanation: One of the LED’s in the bottom row should light up when the
charger is connected to the power outlet.
Test: Make sure that there is power from the power outlet.
• No LED’s are lit on the top row when the charger is connected to both the
power outlet and the battery
The LED’s on the bottom row are lit and you can change charging mode. None
of the LED’s the top row on is indicating charging status.
Explanation: The battery voltage could be under 2±0.5V.
Test: Test the charger on a fresh battery.
• is flashing
If no battery or if the battery voltage is too low the led will start to flash to
indicate the unit has entered power save mode.
Test: Test the charger on a fresh battery.
• is lit
Explanation 1: Reverse polarity.
Test: Make sure that the + cable/clamp is connected to the + terminal and the
– cable/clamp is connected to the – terminal.
Explanation 2: Loads are connected to the battery which requires more power
than the charger can provide.
Test: Turn off or disconnect the loads when charging.
Explanation 3: The charger is not connected to a 12V battery.
Test: Test with a fresh 12V battery.
Explanation 4: The charge cycle is interrupted in step 1.
Test: Test to restart the charge cycle, if it still fails in step 1 the battery is
sulphated and needs to be replaced.
Explanation 5: The charge cycle is interrupted in step 4.
Test: Test to restart the charge cycle, if it still fails in step 4 the battery is can’t
be charged and needs to be replaced.

CTEK Zafir 100 Specifications

General

Brand	CTEK
Model	Zafir 100
Category	Battery Charger
Language	English

Summary

CTEK XS 0.8 Troubleshooting

Solid LED Indicator Faults

Solid LED indicates reverse polarity, high loads, wrong battery type, or interrupted charge cycle.

CTEK XC 0.8 Troubleshooting

Error LED Illumination

The error LED is lit, indicating a fault condition requiring attention.

CTEK XS 800 Troubleshooting

Charger Fails to Switch to Maintenance

Charger does not switch to maintenance mode; check loads or battery.

Error LED Status

The error LED is lit, signifying a detected fault condition.

CTEK MXS 3.6, MULTI XS 3600, Zafir 45, M45 Troubleshooting

No Standby LED When Connected Only to Battery

Standby LED off when only connected to battery; requires battery voltage to light up.

No Lower Row LEDs When Connected Only to Outlet

Lower row LEDs off when only connected to outlet; check outlet power.

No LEDs When Connected to Both

No LEDs lit with both connected; battery voltage may be under 2±0.5V.

Charger Does Not Switch to Maintenance

Charger fails to switch to maintenance mode; check loads or battery condition.

General Standby Mode Behavior

Error LED Indicates Reverse Polarity

Error LED lit; check for reverse polarity and correct terminal connections.

CTEK MXS 5.0 Series Troubleshooting

Solid LED Indicates Faults

Solid LED indicates reverse polarity, high loads, wrong battery type, or interrupted cycle.

CTEK MXS 7.0 Series Troubleshooting

LED Flashing for 4 Hours Then Error

LED flashing for 4h then error; battery likely sulphated or faulty.

Analysis Phase and Error LED

Analysis Phase Issues

Analysis phase indicates issues retaining charge due to loads or battery failure.

Error LED Troubleshooting

CTEK MXT 4.0 Troubleshooting

Analysis Phase and Error/Temperature LEDs

CTEK MXS 10 Troubleshooting

Solid LED Fault Indicators

Charge Cycle Interruption and Temperature LED

Charge Cycle Interrupted in Step 2

Charge Cycle Interrupted in Step 5

CTEK MXS 25 Series Troubleshooting

Analysis, Error, and Temperature LED Issues

Analysis Phase Charge Retention Issues

Error LED Indicates Faults

Temperature LED Flashing

CTEK M200, M300 Troubleshooting

M200/M300 Specific Issues

CTEK MXT 14 Troubleshooting

No LED When Connected Only to Battery

LEDs off when only connected to battery; plug must be connected.

No LED When Connected Only to Power Outlet

Lower row LEDs off when only connected to outlet; check outlet power.

No Top Row LEDs When Connected to Both

Top row LEDs off with both connected; battery voltage may be under 7V.

LED Lit for 4 Hours Then Error Mode

LED lit for 4h then error; check battery size, loads, or cell defect.

LED Flashing Then Error Mode

LED Lit Then Error Mode

LED lit then error; indicates a general error condition.

CTEK MXTS 70 Troubleshooting

No LED or Display When Connected Only to Battery

No LED or Display When Connected Only to Outlet

Error Code Indicators (E01-E04)

MXTS 70 Error Codes and Temperature

E05 Analyze Error

E06 Battery Overheated

E07 Low Battery Voltage

E08 Over Current

E99 Over Voltage Protection

CTEK D250S Dual Troubleshooting

Power LED Not Lit

Charger Does Not Start Charging

Charger Does Not Stop Charging

Flashing LED Indicates Problem

SmartPass Operation and Troubleshooting

Power LEDs Flashing or Faint

SmartPass Does Not Start Charging

SmartPass Does Not Stop Charging

SmartPass Output Off

SmartPass Problem LED Status

SmartPass LED Flashing Codes

Led 3 Flashing: Starter Battery Issues

Led 4 Flashing: Consumer Output Issues

Leds 1, 3, 4 Flashing: High Battery Temperature