Automatic sprinklers (Intermatic timer) do not work in automatic, but manual does work. When I cycle the timer, the solenoid activates but not enough for the sprinklers to spray. Manual works fine. Any ideas?

http://waterheatertimer.org/Woods-timers-and-manuals.html#sprinkler

http://waterheatertimer.org/How-to-wire-Intermatic-sprinkler-timers.html

gene

If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

1) Trippers can wear down. Transformer can go bad if model has 24Volt output. Relay can go bad.
http://waterheatertimer.org/pdf/How-to-Set-and-Troubleshoot-Intermatic-sprinkler-timer.pdf
http://waterheatertimer.org/Intermatic-trippers-and-parts.html#sprinkler

2) Add a comment Feb 2013 with model number, and include if this is new timer or older timer that worked before and stopped working.

If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

The fact that you are getting no error message indicates that programming is not right, or there is electrical short between timer and sprinkler solenoid:

With all digital timers, it is important to clear memory before starting, and then double-check there are no conflicts in programming.
Page 22-23 of the manual has quick-check procedure for identifying shorts that would cause problems.
Check outlet with circuit analyzer to check for correct polarity and grounding.
Google search Hunter Pro C manual to download searchable pdf manual
Keep in mind also that digital timers are susceptible to line noise, and power surge. Simple power outage can disable digital timer. There are no replacement parts.
That's why I recommend good old fashion 14-day repeat-cycle mechanical sprinkler timer with fewer features, but replaceable parts.
For example T8845PV with 24Volt ac output
http://waterheatertimer.org/Intermatic-trippers-and-parts.html#sprinkler
http://waterheatertimer.org/How-to-wire-Intermatic-sprinkler-timers.html
http://waterheatertimer.org/How-to-wire-Intermatic-sprinkler-timers.html#T8845PV

If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

did you leave a blank space between zones? here are the instructions,, http://www.intermatic.com/~/media/files/intermatic/products/instructions/timers/r8806p101c%20-%20english.ashx

Thank you for including model number of product.
R8806P101C is 240Volt timer with 4 wiring terminals.

You removed factory wiring and want to reattach.
The on-off-auto switch does not have separate wiring diagram.
Intermatic offers tech support phone: 815-675-7000

Add a comment and say what you discover.

Open following links for resources:
http://www.intermatic.com/customer%20service.aspx
http://www.intermatic.com/~/media/files/intermatic/products/instructions/timers/r8806p101c%20-%20english.ashx
http://waterheatertimer.org/Intermatic-trippers-and-parts.html#sprinkler

If zones are not advancing, then 1) Clock motor is not rotating dial > replace clock motor, 2) on-off trippers are worn down > replace trippers, 3) or the day skipper is set to skip all days and all skipper pins are pushed down, 4) or sprinkler valve is bad.

The sprinkler timer dial rotates each 24 hours. The trippers cause sprinkler head to turn on zone 1 for example. Zone 1 waters until the dial rotates to part of dial with no tripper. Without a tripper on the dial, the timer turns off circuit to sprinkler. At this point, the sprinkler valve mechanically advances to zone 2 and waits for timer to turn off again. The timer does not advance sprinkler to next zone > the sprinkler valve is designed to advance each time circuit turns off. The timer just turns on and off. When next tripper rotates around, the timer turn on the circuit and zone 2 begins to water.
http://waterheatertimer.org/pdf/How-to-Set-and-Troubleshoot-Intermatic-sprinkler-timer.pdf

The silver pin inserted at 12midnight position is for advancing the day skipper wheel.
Open following link for parts and resources:
http://waterheatertimer.org/Intermatic-trippers-and-parts.html#sprinkler

If the dial does not rotate but manual override works, then the timer is wired incorrectly or polarity of line is reversed or you are connecting to 240Volt line instead of 120V.
1) You have wires from breaker box reversed with wires that goes to sprinkler solenoid. Switch black wires and see if that corrects problem.
2) Check that breaker supplying voltage is 120Volt.
3) Test if black wire from breaker tests 120V to ground wire, and test that white wire from breaker tests 0 volts to ground.

Open following links for additional troubleshoot and parts:
http://waterheatertimer.org/How-to-troubleshoot-Intermatic-timer.html
http://waterheatertimer.org/Intermatic-trippers-and-parts.html#sprinkler

intermatic timer are veary interchangable, check to make sure you have power to the first two terminals that powers the timer part.

http://www.intermatic.com/products/timers/mechanical%20time%20switches/sprinkler%20irrigation%20timers.aspx

http://waterheatertimer.org/pdf/Intermatic-t8845pv.pdf

http://waterheatertimer.org/Intermatic-trippers-and-parts.html#sprinkler

T8845PV has 2 yellow wires for 24Volt output that powers solenoid.
1) Yes the yellow wires connect to two wires on solenoid.
2) 120Volt power arrives from breaker box. Black hot wire connects to Line terminal screw. White neutral connects to Neutral terminal screw. Check for 120Volts across both terminal screws.
3) Next check that output on yellows wires is 24Volts. The manual does not specify if that is 24Volt AC or DC. I assume that means it is AC. Buy cheap multimeter at home center to check 24Volt output.
4) Tests from 2) and 3) will tell you if 120V circuit is problem or if transformer has gone bod or if solenoid is suspect.
5) T8845PV uses T8845PV transformer, but it might be cheaper buying whole new timer and then snapping new mechanism into existing box
http://www.1000bulbs.com/product/3422/ELEC-T8845PV.html

Trippers for T88
156T2978A

http://www.1000bulbs.com/category/time-switch-and-timer-accessories/

http://www.grainger.com/Grainger/INTERMATIC-Timer-Tripper-2E132?Pid=search

http://www.amazon.com/s/?ie=UTF8&keywords=intermatic+timer+trippers&tag=googhydr-20&index=aps&hvadid=5156211581&ref=pd_sl_1b2t69w1k6_b