Troubles And Causes - Toshiba RAS-18UFHP-ES Owner's Manual

TROUBLES AND CAUSES

CAUTION
If any of the following conditions occur, stop the air conditioner immediately, set to off the main power
switch and contact the dealer:
• The indicator lamps blink at short intervals (5 Hz). Reset the circuit breaker 2 to 3 minutes after the
power main switch is turned off. Despite the above-mentioned resetting the lamps still continue going
on and off.
• Switch operation are erratic.
• The main power fuse often blows out, or the circuit breaker is often activated.
• Foreign matter or water has fallen inside the air conditioner.
• Any other unusual condition is observed.
Before you ask for servicing or repairs, check the following points.
Inoperative
• The power main switch is turned off.
• The circuit breaker is activated to cut off the power supply.
• The main power fuse has blown out.
• Stoppage of electric current.
• The batteries in the remote control are exhausted.
• ON timer is set.
Poor cooling or heating performance
• The air inlet or outlet of the outdoor unit is blocked.
• Doors or windows are opened.
• The air filter is clogged with dust.
• The louver is not at the correct position.
• The fan speed is set to low.
• The air conditioner is set in the DRY mode.
• The set temperature is too high. (In cooling operation)
• The set temperature is too low. (In heating operation)
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