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10-2-5. Diagnostic Procedure for Each Check Code (Outdoor Unit) 1) This section describes the diagnostic method for each check code displayed on the remote controller. 2) In some cases, a check code indicates multiple symptoms. In this case, confirm LED display on the outdoor P.C. board to narrow the contents to be confirmed. 3) The check code on the remote controller is displayed only when the same error occurred continuously by multiple times while LED of the outdoor P.C. board displays even an error which occurred once. Therefore the display on the remote controller may differ from that of LED. LED display on outdoor P.C. board Dip switch setup • When turning on 1) only of SW803, the latest error is displayed. As the memory is stored, it can be confirmed even if the power supply is turned off once. (excluding outside temp. sensor (TO) error) • When the work finished or the outdoor temp. sensor (TO) error was found, turn off all of SW803. (The error which occurs at present is displayed.) Only 1) of SW803 is ON. ON All SW803 are OFF. (Initial status) ON 1 2 3 4 1 2 3 4 Display selection • When even a LED of D800 to D804 (Yellow) goes on, error occurrence is indicated. • If pushing the button switch SW800 for 1 second under the above condition, the yellow LED is displayed with flashing. • When pushing SW800 for 1 second again, the status returns to . • The error contents can be confirmed by combining and . (No error) ó (Error occurred) (Push SW800) D800 (Yellow) l ¡ l D801 (Yellow) l ¡ l D802 (Yellow) l l ¥ D803 (Yellow) l l l D804 (Yellow) l ¡ l D805 (Green) ¡ ¡ ¡ (Example of discharge temp. sensor error) l : Go off, ¡ : Go on, ¥ : Flash Check code [E04] Outdoor LED display — Check and troubleshooting (Item without special mention Indicates part of outdoor unit.) [Indoor/Outdoor communication error] Is setting of group address of remote controller correct? YES Are inner wiring and inter-unit cables (1, 2, 3) normal? YES Are CN04 connection and wiring of terminal blocks (1, 2, 3) normal? YES Does D502 (Orange LED) flash after power supply is turned on again? YES NO NO NO NO Check Item code [14]. Correct wiring and inter-unit cable. Correct wiring of connectors and terminal blocks. Check indoor P.C. board. Defect → Replace Check outdoor P.C. board. Defect → Replace – 108 –
Check code Outdoor LED display Check and troubleshooting (Item without special mention Indicates part of outdoor unit.) [F04] ¡ l ¡ l l ¥ l l ¡ l ¡ ¡ [Discharge temp. sensor (TD) error] Is CN603 connection normal? Is resistance value of TD sensor normal? YES NO Correct connector. Sensor error → Replace Check outdoor P.C. board. Defect → Replace [F06] • There is a possibility that it is one of the following errors. Confirm LED on outdoor P.C. board to judge which error it is. Heat exchanger temp. sensor (TE) error, Heat exchanger temp. sensor (TL) error, Suction temp. sensor (TS) error, Miswiring of heat exchanger sensor (TE, TS) ¡ l ¡ ¥ l ¥ l l ¡ l ¡ ¡ Heat exchanger temp. sensor (TE) error] Is CN601 connection normal? Is resistance value of TE sensor normal? YES NO Correct connector. Sensor error → Replace Check outdoor P.C. board. Defect → Replace [F07] ¡ ¥ ¡ ¥ l ¥ l l ¡ l ¡ ¡ ¡ l ¡ l l ¥ l ¥ ¡ l ¡ ¡ ¡ ¥ ¡ ¥ l ¥ l ¥ ¡ l ¡ ¡ ¡ ¥ ¡ ¥ l ¥ l l ¡ l ¡ ¡ [Heat exchanger temp. sensor (TL) error] → Refer to [F07] column. [Suction temp. sensor (TS) error] → Refer to [F12] column. [Miswiring of heat exchanger sensor (TE, TS)] → Refer to [F15] column. [Heat exchanger temp. sensor (TL) error] Is CN604 connection normal? Is resistance value of TL sensor normal? YES NO Correct connector. Sensor error → Replace Check outdoor P.C. board. Defect → Replace – 109 –
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- Page 75 and 76: Optional power supply CN309 (Yellow
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- Page 79 and 80: 3. Outdoor fan control SP110 SP140
- Page 81 and 82: 7. Current release value shift cont
- Page 83 and 84: 1. Pulse Motor Valve (PMV) control
- Page 85 and 86: 2) Heating fan control The outdoor
- Page 87 and 88: 10-1. Summary of Troubleshooting 1
- Page 89 and 90: 10-2. Troubleshooting 10-2-1. Outli
- Page 91 and 92: 10-2-2. Others (Other than Check Co
- Page 93 and 94: - 93 - Check Code List (Outdoor) Re
- Page 95 and 96: Error mode detected by indoor unit
- Page 97 and 98: Error mode detected by outdoor unit
- Page 99 and 100: 10-2-4. Diagnostic Procedure for Ea
- Page 101 and 102: Revised 2: Jun., 2008 [E18 error] I
- Page 103 and 104: [P10 error] Is connection of float
- Page 105 and 106: [F02 error] Revised 2: Jun., 2008
- Page 107: [E03 error] (Master indoor unit) [
- Page 111 and 112: Check code Outdoor LED display Che
- Page 113 and 114: Check code [L29] Outdoor LED displa
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- Page 123 and 124: - 123 - Check Code List (Outdoor) R
- Page 125 and 126: Error mode detected by remote contr
- Page 127 and 128: 10-2-9. Diagnostic Procedure for Ea
- Page 129 and 130: [E18 error] Is inter-unit cable of
- Page 131 and 132: [P10 error] Revised 2: Jun., 2008
- Page 133 and 134: [F02 error] Revised 2: Jun., 2008
- Page 135 and 136: [E03 error] (Master indoor unit) [
- Page 137 and 138: Check code [F12] [Suction temp. sen
- Page 139 and 140: Check code [P22] [Fan system error]
- Page 141 and 142: 11. REPLACEMENT OF SERVICE P.C. BOA
- Page 143 and 144: Revised 2: Jun., 2008 Setting 4-way
- Page 145 and 146: Revised 2: Jun., 2008 Table 1. Sett
- Page 147 and 148: 12-1. Indoor Unit 12. SETUP AT LOCA
- Page 149 and 150: Procedure 1 2 Turn on power of the
- Page 151 and 152: 12-1-4. Function Selection Setup P
- Page 153 and 154: DN Item Contents At shipment from f
- Page 155 and 156: 12-1-6. Monitor Function of Remote
- Page 157 and 158: n Indoor unit power-ON sequence Pow
Check<br />
code<br />
Outdoor<br />
LED display<br />
<br />
Check and troubleshooting<br />
(Item without special mention Indicates part of outdoor unit.)<br />
[F04]<br />
<br />
¡ l<br />
¡ l<br />
l ¥<br />
l l<br />
¡ l<br />
¡ ¡<br />
[Discharge temp. sensor (TD) error]<br />
Is CN603 connection normal?<br />
Is resistance value of TD sensor normal?<br />
YES<br />
NO<br />
Correct connector.<br />
Sensor error → Replace<br />
Check outdoor P.C. board.<br />
Defect → Replace<br />
[F06]<br />
• There is a possibility that it is one of the following errors.<br />
Confirm LED on outdoor P.C. board to judge which error it is.<br />
Heat exchanger temp. sensor (TE) error, Heat exchanger temp. sensor (TL) error,<br />
Suction temp. sensor (TS) error, Miswiring of heat exchanger sensor (TE, TS)<br />
<br />
¡ l<br />
¡ ¥<br />
l ¥<br />
l l<br />
¡ l<br />
¡ ¡<br />
Heat exchanger temp. sensor (TE) error]<br />
Is CN601 connection normal?<br />
Is resistance value of TE sensor normal?<br />
YES<br />
NO<br />
Correct connector.<br />
Sensor error → Replace<br />
Check outdoor P.C. board.<br />
Defect → Replace<br />
[F07]<br />
<br />
¡ ¥<br />
¡ ¥<br />
l ¥<br />
l l<br />
¡ l<br />
¡ ¡<br />
<br />
¡ l<br />
¡ l<br />
l ¥<br />
l ¥<br />
¡ l<br />
¡ ¡<br />
<br />
¡ ¥<br />
¡ ¥<br />
l ¥<br />
l ¥<br />
¡ l<br />
¡ ¡<br />
<br />
¡ ¥<br />
¡ ¥<br />
l ¥<br />
l l<br />
¡ l<br />
¡ ¡<br />
[Heat exchanger temp. sensor (TL) error] → Refer to [F07] column.<br />
[Suction temp. sensor (TS) error] → Refer to [F12] column.<br />
[Miswiring of heat exchanger sensor (TE, TS)] → Refer to [F15] column.<br />
[Heat exchanger temp. sensor (TL) error]<br />
Is CN604 connection normal?<br />
Is resistance value of TL sensor normal?<br />
YES<br />
NO<br />
Correct connector.<br />
Sensor error → Replace<br />
Check outdoor P.C. board.<br />
Defect → Replace<br />
– 109 –
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